Majorana's Experiments and Russell's Criticism
Some shielding experiments were conducted in the early 20th century by Majorana. Majorana claimed to have measured positive shielding effects. Henry Norris Russell's analysis of the tidal forces showed that Majorana's positive results had nothing to do with gravitational shielding. To bring Majorana's experiments in accordance with the equivalence principle of General Relativity he proposed a model, in which the mass of a body is diminished by the proximity of another body, but he denied any connection between gravitational shielding and his proposal of mass variation. For another explanation of Majorana's experiments, see Coïsson et al. But Majorana's results couldn't be confirmed up to this day (see the section above) and Russell's mass variation theory, although meant as a modification of general relativity, is inconsistent with standard physics as well.
For a historical review of efforts to detect any effects of gravitational shielding in the early 20th century, see the article by Martins.
Read more about this topic: Gravitational Shielding
Famous quotes containing the words experiments, russell and/or criticism:
“Science is a dynamic undertaking directed to lowering the degree of the empiricism involved in solving problems; or, if you prefer, science is a process of fabricating a web of interconnected concepts and conceptual schemes arising from experiments and observations and fruitful of further experiments and observations.”
—James Conant (1893–1978)
“Dear common flower, that grow’st beside the way,
Fringing the dusty road with harmless gold,
First pledge of blithesome May,
Which children pluck, and, full of pride, uphold,
Hight-hearted buccaneers, o’erjoyed that they
An Eldorado in the grass have found,
Which not the rich earth’s ample round
May match in wealth—thou art more dear to me
Than all the prouder summer-blooms may be.”
—James Russell Lowell (1819–1891)
“I hold with the old-fashioned criticism that Browning is not really a poet, that he has all the gifts but the one needful and the pearls without the string; rather one should say raw nuggets and rough diamonds.”
—Gerard Manley Hopkins (1844–1889)